Railway track grinder



May 2, 1933 H. PERAZZOLI RAILWAY TRACK GRINDER Filed June 24, 1951 4 sheets-sheet v 1 May 2- 1933- H. PERAZZOL: l,906,872

RAILWAY TRACK GRTNDER Filed June 24. 1931 4 Sheets-Sheet 2 RAILWAY TRACK GRINDER Filed June 24, 1931, 4 Sheets-Sheet 3 M315 2 w33 H. PRAzzom Lm RAILWAY TRACK GRINDER Filed June 24, 1931 4 SheeiS-Shee 4 Patented May 2, i933 y 1 ,letpilitl STT @Fi HENRY PERAZZOLI, OF PHLADELlHIA, PENNSYLVANIA RAILWAY TRACK GRXNDER Application filed June 24, 1931. Serial No. 546,563.

This invention relates to new and useful Fig. 5 is a sectional view on line 5 5, improvements in abrasive devices and more Fig. l; particularly to abrasive devices constructed Fi 0'. 6 is a detached perspective view showparticularly for railway track work. ing the link intermediate the motor and a An important object of the invention is to jack screw for the regulation of the vertical 55 provide a device of the stated character, position of the abrasive wheel; which is relatively light in weight to permit Fig. 7 is a fragmentary view in side elevathe easy manipulation thereof by the option of the novel supporting means for the erator. machine when not positioned upon a railway lo Another object of the invention is to protrack;

vide a device of the stated character having Fig. S is a view similar' to that shown in a single abrasive wheel suitably disposed and Fig. 7 showing the alternate position of the adjustably mounted for movement in any di supporting means when used as a handle in rection with respect to the track rail. the manipulation of the machine;

ib Another object of the invention is to pro- Fig. 9 is a fragmentary view in section on 65 vide a device having detachable means for line 9-9,Fig.8; supporting` the abrasive machine when posi- Fig. 10 is a detached view in elevation of' tioned on a track. the abrasive wheel, showing the auxiliary Another object of the invention is to proabrasive element connected thereto by means vide a device of the stated character which of the flexible shafting; 70 may be partially dismantled to permit the Fig. l1 is an enlarged view in section showremoval thereof from the track and enable ing the novel method for connecting the iiexie the said machine to be placed in a comparable shafting to the shaft of the main abrasive tively small area for transportation, storage element; and and handling thereof. Fig. l2 is a detached fragmentary View 75 Another object of the invention is to proshowing means for adjusting the relative povide a device of the stated character, having sition of the subframe with respect to the a novel drive mechanism intermediate a main frame of the machine. source of power and the abrasive wheel. Referring now to the drawings, a machine o Another object of the invention is to promade in accordance with my invention con- 80 vide a machine of the stated character having stitutes a main frame l formed of a single means on the shaft of the abrasive wheel to casting and comprising the longitudinal permit connection thereto of auxiliary members 2, 2 and transverse members 3, 3 n abrasive means for the purpose of finishing the said longitudinal members 2, 2 convergthe end surfaces of the adjacently disposed ing inwardly with respect to each other adtrack rails. jacent their extremities. rlhe main frame l The invention further resides in certain in the present instance is mounted upon a features of the detail construction of the de- Pair 0f traction Wheels 4, l by means of the vice which are set forth hereinafter and ClOwnwardly extending arms 5 secured at shown in the accompanying drawings, in their upper ends to the longitudinal members which: 2, 2 of the frame and atv the lower ends ther-e- Figure l is a view in perspective of a maof to the hubs 6 of the traction wheels 4. In Chine made in accordance with my jnven-` the present instance the traction wheels l ,r tion; are both arranged to reside upon the same d Fig. 2 is a fragmentary plan view of the track rail 7, and the main frame l supported operating portion of the machine; by the said wheels is centrally disposed on F 1g. 3 is a sectional view on line 3 3, the wheels with respect to the track rail 7. Fig. 2; For the purpose of supporting the frame Fig. 4 is a side elevation view of the disin upright position to permit successful opclosure of Fig. 2; eration of the machine, I provide a laterally 10b extending arm 8 terminating at its outer extremity in a third traction wheel 9 rotatably mounted on the arm 8 and adapted to reside upon the rail 7 a of the track. In the present instance the laterally extending arm 8 adj acent the main frame of the machine comprises the diverging tubular arms 8a and 8b, which, at their extremities, are welded to a longitudinal beam member 10. In the present instance the member 10 is releasably secured to the adjacent longitudinal member 2 of the main frame 1 of the machine by forming beveled portions 11, 11 on the end surfaces of the member 1() which are adapted to reside at one end in a correspondingly formed recess 12 formed in the member 13 secured to the longitudinal side frame member 2, and at the other end a smaller tongue portion 14 is arranged to pass through a slot 15 in the member 16 secured to the side member 2 and by means of an eccentric cam member 17, the peripheral surface of which is formed to coincide with the beveled surface of the tongue 14 is pivotally mounted in the member 16 and by pivoting the handle 13, the said cam is pivotedinto contact with the adjacent extremity of the member 10 and the contacting beveled surfaces of the abutting members 17 and 10 respectively normally prevents the disconnection of the beam 10 from the main frame 1 of the machine.

A subframe 19 is mounted upon the main frame 1 and is arranged to move longitudinally with respect thereto on rollers 2O which are rotatably mounted in the housings 21, the said rollers being positioned to ride upon the upper surface of each of the longitudinal side frame elements 2, 2.

A sub-subframe 22 is carried by the subframe 19 and is arranged for adjustment transversely with respect to the said subframe 19 and the main frame 1 of the machine, the said sub-subframe 22 being supported by rollers 23 similar to those described before, and rotatably mounted in the housings 24 on the sub-subframe 22 which ride upon the transverse members of the subframe 19.

Lateral adjustment of the sub-subframe 22 is accomplished by means of a screw 25 which is threaded in a block 26 forming a part of the said sub-subframe 22, the extremities of the said screw 25 being rotatably mounted at one endin a suitable socket 27 secured to the subfra'me 19 and at its other extremity rotatably residing in a collar 28 similarly secured to the said subframe, the said screw preferably passing beyond the collar 28 and having a wheel 29 rigidly secured thereon for the purpose of permitting the easy rotation of the screw 25. It will be obvious that by rotating the'screw 25 in clock-wise or counter-clockwise direction, the threaded block 26 will be at vanced or retarded accordingly thereon and respectively alter the position of the subsubframe 22 transversely with respect to the subframe 19 and the main frame 1 of the machine.

A motor 30 is suspended from the sub-subframe 22 by means of an arm 31 joined thereto and pivotally mounted at its upper extremity upon a bar 32. The position of the motor 30 suspended from the sub-subframe 22 may be varied by means of a jack screw 33 movably residing in a collar 34 forming a part of the sub-subframe 22, the said jack screw 33 at its lower extremity terminating in a cross head member 35 having suitable grooves o6 therein adapted to slide upon the runners 37, 37 for guiding the vertical movement of the said screw, and provided with a vertical centrally disposed bore 35a. rlhe cross head is further provided with a longitudinally disposed bore 36a extending therethrough and connecting with the vertical bore 35a. Connection is made between the under side of the cross head 35 and the motor 3() by means of a pivotally mounted link 38 extending vertically in the bore 35a and secured herein by a pin 38a residing in the longitudinal bore 36a. The link 38 extends a suitable distance below the undersurface of the cross head 35 and having a hole 39 therein, the extending portion of the said link 38 residing intermediate two upstanding shoulders 40-40 having corresponding holes therein to permit the passage of a pin 41 through the holes 40-40 and the hole 39 in the link 38. ln the present instance the ack screw 33 is respectively raised or lowered by means of a hand wheel 42.

The shaft 43 of the motor 40 is connected to the shaft 44 on which the main abrasive wheel 45 is mounted by means of a V-drive substantially enclosed in a suitable casing 46. rlhe detailed construction of the drive consists in rigidly mounting a beveled gear 47 on the outer extremity of the motor shaft 43, the teeth 48 thereof being in geared relation with the teeth 49 of a beveled gear 50 rigidly mounted upon the shaft 51 which is rotatably mounted within the casing 46 by means of the ball bearing collars 52, 52 disposed adjacent each end of the said shaft 51. A beveled gear 53 having teeth 54 is rigidly mounted on the opposite end of the shaft 51 and the teeth 54 thereof are in engagement with the teeth 55 of a similar beveled gear 56 rigidly mounted upon the shaft 44 carrying the main abrasive element 45 and which is rotatably mounted in the lower portion of the casing 46 by means of the ball bearing collars 57, 57. T he end of the shaft 44 arranged to extend beyond the main abrasive wheel 45 is provided with a threaded portion 58, the purpose for /hieh will be set forth in detail hereinafter.

The main abrasive wheel 45 in the present instance is provided with a suitable guard 59 which is rigidly secured thereabove by the radially extending arms 60, which are secured at their inner extremities to the stationary drive housing 46.

In the present instance the motor 8O is started and stopped and the speed thereof controlled by means of a control box 61 rigidly mounted adjacent one end of the main frame 1 of the machine. For the purpose of providing a brake to prevent the grinding` machine from moving when in position on the railway track,l provide a novel arrangement comprising an adjustble hand screw 62 residing in the threaded collar 63 mounted upon the main frame 1 of the machine. A swivel 64 is secured in the lower extremity of the hand screw 62 the Linder surface of which is arranged to contact with the tractive surface of the wheels 4, 4 when the screw 62 is lowered a sulicient distance and whereby rotation of the track wheels 4 is prevented.

Another novel feature of my invention resides in the pivotally mounted handle 65 secured adjacent one end of the main frame 1 of the machine and which, when in the position shown in Figs. 1 and 8 of the drawings, is adapted for use as a handle in facilitating' the movement of the entire machine, and further, by placing the said handle 65 in a positionrsimilar to that shown in Fig. 7, affords a suitable support or stand for the machine when the laterally extending support arm 8 and the wheel 9 are disconnected therefrom. The handle 65 is secured in the horizontal position by a pin 66 which is actuated by a spring 67 residing in the housing 68, the said spring 67 normally tending to force the said pin 66 into a detent 69 formed in the handle element 65 as shown in Fig. 9 of the drawings.

An important feature of my invention resides in the detachable auxiliary abrasive member for nishing the adjacent end surfaces of aligned track rails, and referring particularly to Fig. 11 of the drawings, this connection is accomplished by means of an auxiliary hub 70 having a threaded inner portion 71 therein which is adapted to be screwed on the aforementioned threaded portion 58 of the main abrasive shaft 44, (see Fig. 5). The position of the respective interlocking threads affords a suitable lock for the auxiliary hub 7 O on the shaft 44. The hub 70 is provided at its outer face with a longitudinally extending aperture 72 transversely of which is disposed a cross pin 78 and the spring pressed balls 74, 74 operated by the springs 75, 75 secured in the hub by the screw plugs 76.

The connection from the previously described auxiliary hub 70 to the auxiliary abrasive member 77 is accomplished by means of a flexible shaft 78 maintained within a Hexible conduit housing 7 9, and the rotation of the shaft 44 may be imparted t-o the flexible shaft 77, of the auxiliary abrasive member by inserting the extremity of said shaft inwardly of the aperture of the auxiliary hub 70, the extremity of the said shaft being provided with a slot 8() adapted to engage the cross pin 73. The vshaft 78 being releasably maintained in the hub 70 by the spring pressed balls 74, 7 4 which, by the action of the springs 75, 75 engage the annular detent 81 formed on the auxiliary shaft 78.

To facilitate the movement of the subframe 19 on the main frame 1 I may further care to provide a novel chain and sprocket means for adjusting the position of the subframe 19 on the said main frame 1. 1n constructing the adjusting means l may mount a pair of sprockets 81, 81 inwardly of and on one side member of the main frame 1. I also provide a smaller sprocket 82 mounted at one side of the subframe and centrally located with respect thereto, the said sprocket being rotatable by means of a hand wheel 88 connected thereto through the shaft 84. A sprocket chain is passed over the sprocket 82 and around each of the sprockets 81, the said chain having the extremities thereof secured at each end of the adjacent side of the subframe 19 as at 86. By turning the hand wheel 84 in either a clockwise or counterclockwise direction the position of the subframe 19 is correspondingly altered with respect to the main frame 1 of the machine.

It will be noted that by my invention I provide a railway track grinding machine which may be readily operated and handled by a single person, heretofore impractical, due to the bulkiness of prior machines of this character. A further feature of the invention resides in the easy removal of the machine from the railroad track in the event of an approaching train and the operator, by merely disconnecting the laterally extending support arm 8 from the main frame 1 of the machine, may place the main portion of the said machine intermediate to adjacent railway tracks supported by the handle element 65 positioned as shown in Fig. 7 until the train is passed. A machine of the character described, relatively light in weight, which obviously makes the device attractive to tracQion companies. both from the standpoint of ease of handling, resulting` in dccrease in labor necessary and relatively inexpensive cost of manufacture because of the substantial decrease in the quantity of materials needed therein.

1t should be further noted that a machine made in accordance with my invention provides a device which may be stored or transported in a relatively small area and that by provision of the detachable auxiliary abrasive member, a means is provided whereby the adj acently disposed end surfaces of track rails may be finished and which is an extremely desirable feature not available in devices of this character heretofore and made possible only by the genius of the inventor.

While I have set orth the embodiment of my invention for the purpose of description, it will be apparent that certain modifications and changes may be made thereto Without limitation, except as described in the appended claims.

I claim:

1'. In an abrasive machine of the character described, for track Work, comprising a frame, a laterally extending arm detachably secured to and for the purpose of supporting said main traine, a bracket mounted on the frame constituting a support for the machine in the absence of said laterally extending arm, a motor carried by the machine7 and an abrasive element connected to said motor and normally disposed above one rail of the track.

2. In an abrasive machine of the character described for track Work, comprising a frame, a pair of traction Wheels supporting said frame and adapted for travel upon one track rail, a laterally extending arm having a traction Wheel arranged for travel upon the other rail of the track, said arm being detachably secured to and for the purpose of supporting said machine, a bracket mounted on the frame constituting a handle therefor in one position and in another position a support for the machine in the absence of said laterally extending arm, a motor carried by the machine, and an abrasive element connected to said motor and normally disposed above one rail of the track.

3. In an abrasive machine of the character described for track Work7 comprising a main frame, a pair of traction Wheels supporting said frame and arranged for travel upon one rail of the track, a laterally extending support arm having a traction Wheel arranged for travel upon the other rail of the track detachably secured to the said main frame, a bracket mounted on the frame constituting a support for the machine in the absence of said laterally extending arm, a subtrame carried by the main frame, a sub-subframc carried by said subframe, a motor carried by the subsubframe7 and an abrasive element connecte(V to said motor by means of a V-drive.

4. In a abrasive machine of the character described for track Work, comprising a frame, a laterally extending arm detachably secured to said frame for the purpose of supporting the latter, a bracket pivotally mounted on the frame constituting in one position a handle therefor, and in another position a support for the machine in the absence of said laterally extending arm, a motor` carried by the machine, and an abrasive element connected to said motor and normally disposed above one rail of the track.

HENRY PERAZZOLI. 

